The origins of Jupiter's Galilean moons is a long-standing mystery. But new research suggests a promising pathway for how they may have formed. From bottom to top is Io, ...

There are currently 92 moons known to orbit Jupiter. The four largest – Io, Europa, Ganymede and Callisto – were discovered by Galileo Galilei in 1610 when he pointed the first astronomical telescope ...

Most of us know four moons of Jupiter, called the Galilean moons because they were first discovered by Galileo in 1610. Named for figures closely associated with Jupiter from Greek mythology, Io ...

Researchers reported auroras around Jupiter’s two largest Galilean moons for the first time and found new features in the auroras of volcanic Io and icy Europa. Share full article. 15.

As a result, the Galilean moons look nothing like dead worlds such as Earth’s own moon. Of the quartet, Io is the closest, so it experiences the full wrath of Jupiter’s gravity.

In binoculars or a telescope, the Galilean satellites should appear as bright dots on either side of Jupiter during opposition. NASA’s Juno spacecraft has been orbiting Jupiter for six years.

"We found that the Galilean moons of Jupiter, one of which is the largest moon in our solar system, would very quickly destroy any large rings that might form," Stephen Kane, ...

They're called the Galilean moons in honor of his achievement. Jupiter has 80 known satellites, but these are the only ones bright enough to see in even larger amateur telescopes.

Jupiter's four best-known moons are the Galilean moons, discovered by Galileo Galilei in 1610. They are named Ganymede, Callisto, Io and Europa, after figures in Greek mythology associated with ...

Io is one of the largest moons of Jupiter and the closest of the four Galilean moons. It's also the most volcanically active place in the Solar System, and it continues to confirm this record by ...

Jupiter will soon reach opposition, appearing larger and brighter than at any other point of the year. At the same time, it’ll make its closest approach to Earth in nearly 60 years.

New research shows auroras can also be seen on the Galilean moons of Jupiter: hypervolcanic Io, icy Europa, quirky Callisto and gigantic Ganymede. Auroras exist throughout the cosmos, but often in ...